StarBright™ Dyes are new, fluorescent nanoparticles specifically developed for flow cytometry, excited by the five major laser lines found on most instruments. They are bright, have narrow excitation and emission, are fixable, stable, and do not require a special buffer to multiplex. More information on the entire range can be found on our dedicated StarBright Dye page.
To allow you to fully evaluate and characterize StarBright Dyes on your instruments, or help standardize instruments, we have created special sample sizes of 25 tests (5 µl per test) of all of our StarBright UltraViolet (SBUV), StarBright Violet (SBV), StarBright Blue (SBB), StarBright Yellow (SBY), and StarBright Red (SBR) Dyes.
Conjugated to our highly validated Mouse Anti-Human CD4 Antibody, clone RPA-T4, these sample sizes are available for all of our StarBright Dyes, see Table 1.
Table 1. StarBright Dyes conjugated to CD4.
StarBright UltraViolet Dyes |
StarBright Violet Dyes |
StarBright Blue Dyes |
StarBright Yellow Dyes |
StarBright Red Dyes |
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| SBR670 | ||||
| SBR715 | ||||
| SBR775 | ||||
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SBV535New |
SBR815 | |||
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SBUV770 coming soon |
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Representative data of CD4 staining (MCA1267) of human peripheral blood captured on the ZE5 Cell Analyzer can be seen in Figure 1 and for our new spectral StarBright Dyes data captured on the Cytek Aurora in Figure 2.

Fig. 1. Mouse Anti-Human CD4 staining using StarBright Dyes. Representative histograms of human peripheral blood lymphocytes stained with StarBright UltraViolet Dyes, StarBright Violet Dyes, StarBright Blue Dyes, and StarBright Yellow Dyes conjugated to CD4.

Fig. 2. Mouse Anti-Human CD4 staining using spectral StarBright Dyes. Representative histograms of human peripheral blood lymphocytes stained with StarBright UltraViolet and StarBright Violet Dyes
To give you as much flexibility as possible, rather than purchasing pre-planned panels of fluorescent dyes, any sample size of StarBright Dye–conjugated CD4 can be purchased individually. A discount is available when buying multiple vials of sample size, increasing when you purchase more.
Go to the CD4 product page to begin shopping, or check out our extensive range of full size 100 test size StarBright Dye–conjugated antibodies available for purchase.
For more information on all of our StarBright Dyes and how these products can improve the effectiveness of your flow cytometry experiments, please take a look at our StarBright Dyes page.
Useful information about fluorescent dyes and immunophenotyping can be found in our flow cytometry explained knowledge hub. If you are interested in learning the fundamentals of this application, please view our Flow Cytometry Basics Guide.


